Sand is . A. Element
B. Composite
C. Homogeneous mixtures
D. Heterogeneous mixtures

Which taxon group is more specific, in regards to organisms that are in that group? mammalia animalia

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Which of these resources is used worldwide to make construction products, pottery, and porcelain